Ugh. So past few days when I boot up just to check some emails and move some files for dropbox. I have a cold boot grind. Either its the fans on my video card. I have read some postings about the Twin Forzer cards possibly having cold boot fan grinding. Or, its my H100 grinding on cold boot. But its only on a true cold boot. IE; the computer has been off long enough for everything to get back to ambient. If I shut it off, but then restart within a hour or so. No noise. Let it sit for a few hours, and bamn. Grinding noise on boot, until in windows and everything stabilizes. Ill have to pull the comp out on monday and boot it up cold on the table with the side panel off to get a true idea of the source of the noise. Ugh

Ugh. So past few days when I boot up just to check some emails and move some files for dropbox. I have a cold boot grind. Either its the fans on my video card. I have read some postings about the Twin Forzer cards possibly having cold boot fan grinding. Or, its my H100 grinding on cold boot. But its only on a true cold boot. IE; the computer has been off long enough for everything to get back to ambient. If I shut it off, but then restart within a hour or so. No noise. Let it sit for a few hours, and bamn. Grinding noise on boot, until in windows and everything stabilizes. Ill have to pull the comp out on monday and boot it up cold on the table with the side panel off to get a true idea of the source of the noise. Ugh
Rebelord

Yes, I live in Miami, Fl. I do live about 2 miles from the water too. But if salt air is getting to the pump, then that means salt is getting into the H100 as a whole, which would mean I would have a leak. Which I dont.
I think, the bearings it is using started off with higher clearance. Which then turns into premature wear, causing the pump impeller to vibrate causing the grind noise.
Boils down to allowing higher fault tolerances for bearing clearance.

:O This cannot happen. I just bought a new power supply, so after it arrives, I can stick a spare rig in the garage, where temperatures get below freezing. We shall clash again. On an unrelated note, I didn't know that 460 was doing so well compared to the other members!